Mountable electronic navigation instrument



FIG. 1 is a perspective view of the mountable electronic navigation instrument of the present invention;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left end view thereof;

FIG. 5 is a right end view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a top plan view thereof. 

The ornamental design for a mountable electronic navigation instrument, as shown and described. 